ElasticSearch stats API taking too long to respond

Elastic Stack Elasticsearch
1

We have a 3 node cluster which is working fine. The problem is with the stats calls. Any of the following calls takes too long to respond (30 to 45 seconds)

GET _nodes
GET _nodes/stats
GET _stats

Thanks in advance for any help :slight_smile:

Cluster Information:
Nodes: 3
Indexes: ~30
Shards: 5 per index
Replicas: 1
Documents: ~75.000.000
Size: ~150GB
Elastic search version: 5.4.3
OS: Windows Server 2016
RAM: 16GB, (8GB dedicated to heap)

2

After restarting the cluster servers, the problem was resolved !

3

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